57358520 has 64 divisors (see below), whose sum is σ = 134719200. Its totient is φ = 21952000.

The previous prime is 57358513. The next prime is 57358529. The reversal of 57358520 is 2585375.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57358529) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 228395 + ... + 228645.

Almost surely, 2^57358520 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57358520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67359600).

57358520 is an abundant number, since it is smaller than the sum of its proper divisors (77360680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57358520 is a wasteful number, since it uses less digits than its factorization.

57358520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488 (or 484 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 35.

The square root of 57358520 is about 7573.5407835437. The cubic root of 57358520 is about 385.6553072014.

The spelling of 57358520 in words is "fifty-seven million, three hundred fifty-eight thousand, five hundred twenty".